A steady rise in average global ocean temperatures this year is now outpacing anything seen in four decades of satellite observations. But even those typically aligned on climate science can’t agree on how alarmed they should be.
Yuan and other scientists say it’s possible that the disappearance of that cooling effect is behind at least some of the rapid warming, and that a stubborn La Niña — the cooling climate pattern that dominated for the past three years — had masked the change until now.
The only peer-reviewed research exploring it, a paper published in 2009, found a minimal link between the pollution and ocean temperatures, Mann said — with an effect on the order of 0.05 degrees Celsius, a small fraction of the warming observed lately.Weather patterns and the influence of El Niño are also proving conducive to ocean warming — something many climate scientists are stressing as evidence that the trends, while cause for some concern, are not reason for panic.
France Dernières Nouvelles, France Actualités
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